I just got back from Hawaii and I made these at least four times while I was there. If you can get macadamia nuts from Hawaii, they're the best kind to use.
Preheat oven to 350-375.
Cream your margarine, sugar, and liquids. Add baking soda and salt, blend, and then add the flour. Blend until smooth and add more liquid if it won't blend easily. (Batter should be more fluid than cookie batter but thicker than cake batter).
Stir in macadamia nuts and chips (optional).
Pour into a prepared dish and bake for 15-20 minutes.
Enjoy! (And go visit Hawaii one day for great food and lots of exercise!)